Home / 142,575.45-196,803.30-82,170.21

Finding the Fourth Proportional to 142,575.45, 196,803.30 and 82,170.21

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Solution

The fourth proportional to 142,575.45, 196,803.30 and 82,170.21 is: 113,423.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,575.45 : 196,803.30 = 82,170.21 : x
  2. Step 2: Convert to fraction form
    142,575.45/196,803.30 = 82,170.21/x
  3. Step 3: Cross multiply
    142,575.45x = 196,803.30 × 82,170.21
  4. Step 4: Simplify right side
    142,575.45x = 16,171,368,489.69
  5. Step 5: Solve for x
    x = 16,171,368,489.69/142,575.45
  6. Step 6: Final answer
    x = 113,423.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.